Automobile-engine attachment



E. C. ROWLAND.

' AUTOMOBILE ENGINE ATTACHMENT.

APPLICATION FILED JULY 2|, 1919.

Patented Apr. 27, 1920.

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.following description wherein ELMO C. ROWLAND,

AUTOMOBILE-ENGINE OF MABSHALLTOWN, IOW'A.

ATTACHMENT.

Application filed July To all whom it may concern Be it known that-I, FILMO C. ROWLAN a citizen of the United States residing at Marshalltown, in the county of Marshall and State of lovva, have invented new and useful Improvements in Automobile-Engine Attachments, of which the following is a speci' fication.

The object of the invention is to provide a device for use in conjunction with automobile engines, whereby the carburetor may be left undisturbed in the starting of the engine. The present engine provides for the changing of the the] mixture in starting the engine in cold or damp weather by regulating or choking the air supply to the carburetor, thus providing for a relatively rich mixture torstarting without the necessity of having to open the carbureter to admit additional g'asolene thereto.

A further object of the invention is to provide a device of the character mentione above which is simple in construction, durable and eltective in operation and inexpensive to manufacture. e

Other and further objects appear in the the invention is set forth in detail.

To the exact construction in which it is described. the invention is not to be restricted. The right is reserved to make such changes or alterations as the actual reduction to practice may suggest, in so far as such changes are compatible in spirit with the annexed claims.

In the accompanying drawings:

Figure 1 is a view partly in section and partly in elevation showing the practical application of the invention.

Fig. 2 is a perspective view and part of the operating choking device.

Fig. 3 is a perspective view of the plate mounted on the vehicle dash and through. which the end operating element of the d evice projects.

of the support means "for the Fig. 4: is a view partly in elevation andpartly in section of the butterfly valve used to choke or cut ofl the air supply to the car.- bureter.

' Referring to the drawings the invention is shown applied to a well known make 0 vehicle having the engine 1, the radiator 2 and the front dash 3, the usual carbureter t being provided and operated by the rod 5 projecting through the dash.

Specification of Letters Iatent.

' 16, the bar 13 Since the invention contemplates the use of means for starting the engine that is, for changing the character of the fuel mix ture at starting without changing the carbureter setting, the butterfly valve 6 carried in the air supply tube 7 for the carburetor is designedfor operation in the front dash. To this end the butterfly valve is provided with an. arm 8 to one end of which there is pivotally connectedone end of a rod 9, the remaining end of the latter being pivotally connected to one end of a rocker arm 10 which is rockingly supported on a bracket plate 11 attached to the radiator 2. [he remaining end of this rocker arm ispivotally connected'to one end of a rod 12 which extends back in the direction of the dash and connects with one end of a bar 13 the latter passing through the dash and g car rying on its free end a knob 1 L.

A plate 15 is mounted on the front dash to which it is secured by appropriate screws and this plate 15 is provided with a slot. 16 through which the bar 13 passes, being toothed on its under edge as indicated at 17, and the teeth engaging the bottom of the slot 16 to preclude longitudinal movement of the bar once it has been adjusted as desired.

In the operation of the device, the driver of the vehicle raises the bar 13 by catching hold of the knob 1%, when the teeth 17 have been disengaged from the bottom of the slot maybe moved. longitudinally with the result that the rod 12 is similarly moved and thQ'I'OOlKGI' arm 10 shifted. on its pivotal connection with the support plate .11. Such a movement of the rocker arm e ects longitudinal movement of the rod 9 with the consequent shifting of the butterfly valve 6. It the movement on the rod 9 is ina direction tending to close the butterfly valve 6 the air admitted to the carbureter is reduced and the starting mixture thus enriched, the reverse being the case it an opposite move- 9; Obviously be shifted in either direction by the proper movement on the arm 13. Therefore the butterfly valve may be moved toward the open or closed position as desired and when. the satisfactory running position has been obtained the bar 13 may be allowed to drop, when the teeth 17 will engage the bottom of the slot 16 and preclude further longitudinal movement of the bar, thereby holding the butterfly valve in the rod 9 may Patented Apr. 2'7 1920.

a1, 1919. Serial No. 312,333.

the positiion in which it is desired it shall he set. I j I From the foregoing description and the accompanying drawings, it is believed that a clearenough understanding of the invention is to he had to render further description un-- necessary.

The invention having been described, What ,is claimed as new and useful is:

,1. The combination with an autovehicle and carbureter therefor, of a butterfly valve mounted in the ainsupply pipe of the carbureter, a bracket plate mounted von the radiator of the vehicle, a rocker arm carried by the bracket plate, a connecting rod conmeeting the butterfly valve with the rocker arm, a bar slidably mounted in the'dash, and a connecting rod connecting said bar with said arm. r e

2. The combination with an auto vehicle anl carbhieter therefor, of a butterfly valve mounted in the air supply pipe of the carhiu'eter, a. bracket plate mounted on the carbureter of the vehicle, a rocker arm carried by the bracket plate, a connecting rod connecting the butterfly valve with the rocker arm, a bar slidahly mounted in said dash. and

edge, a connecting rod connecting said bar with said arm, and Ia slotted plate through which the said bar passes, the teeth of said bar engaging in the bottom of said slot erated for the purpose specified.

In testimony whereof I affix my si nature.

t me o. BOWL ND formed with teeth on its under 

